I have an 04.5 Cummins and i was driving home and i started to see that i was leaking fluids i was almost home so i parked it in my shop haven't ran it since and the leak was fuel going into my oil and blowing out the overflow and ideas what could cause this I it was idling fine and driving like there weren't any problems but obviously fuel in the oil is not good any ideas or advise would be greatly appreciated.

 

CP3 (injector pump) is bad. If an injector was stuck open, you would have noticed a lot of white smoke.

 

You have a cracked injector! Hope you didn't wash all the bearing out. For it to get that full it would take a long time and running fuel instead of oil is a death sentence! Pull the injectors send them out then drop the pan and pull a few main and crank bearings to see how bad it is!